Vortex-averaged Arctic ozone depletion in the winter 2002/2003

Christensen, T.; Knudsen, B. M.; Streibel, M.; Andersen, S. B.; Benesova, A.; Braathen, G.; Claude, H.; Davies, J.; De Backer, H.; Dier, H.; Dorokhov, V.; Gerding, M.; Gil, M.; Henchoz, B.; Kelder, H.; Kivi, R.; Kyrö, E.; Litynska, Z.; Moore, D.; Peters, G.; Skrivankova, P.; Stübi, R.; Turunen, T.; Vaughan, G.; Viatte, P.; Vik, A. F.; von der Gathen, P.; Zaitcev, I.

doi:10.5194/acp-5-131-2005

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Vortex-averaged Arctic ozone depletion in the winter 2002/2003

Urheber*innen

Christensen, T.
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Knudsen, B. M.
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/persons/resource/streibel

Streibel, M.
0 Pre-GFZ, Departments, GFZ Publication Database, Deutsches GeoForschungsZentrum;

Andersen, S. B.
External Organizations;

Benesova, A.
External Organizations;

Braathen, G.
External Organizations;

Claude, H.
External Organizations;

Davies, J.
External Organizations;

De Backer, H.
External Organizations;

Dier, H.
External Organizations;

Dorokhov, V.
External Organizations;

Gerding, M.
External Organizations;

Gil, M.
External Organizations;

Henchoz, B.
External Organizations;

Kelder, H.
External Organizations;

Kivi, R.
External Organizations;

Kyrö, E.
External Organizations;

Litynska, Z.
External Organizations;

Moore, D.
External Organizations;

Peters, G.
External Organizations;

Skrivankova, P.
External Organizations;

Stübi, R.
External Organizations;

Turunen, T.
External Organizations;

Vaughan, G.
External Organizations;

Viatte, P.
External Organizations;

Vik, A. F.
External Organizations;

von der Gathen, P.
External Organizations;

Zaitcev, I.
External Organizations;

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Christensen, T., Knudsen, B. M., Streibel, M., Andersen, S. B., Benesova, A., Braathen, G., Claude, H., Davies, J., De Backer, H., Dier, H., Dorokhov, V., Gerding, M., Gil, M., Henchoz, B., Kelder, H., Kivi, R., Kyrö, E., Litynska, Z., Moore, D., Peters, G., Skrivankova, P., Stübi, R., Turunen, T., Vaughan, G., Viatte, P., Vik, A. F., von der Gathen, P., Zaitcev, I. (2005): Vortex-averaged Arctic ozone depletion in the winter 2002/2003. - Atmospheric Chemistry and Physics, 5, 1, 131-138.
https://doi.org/10.5194/acp-5-131-2005

Zitierlink: https://gfzpublic.gfz-potsdam.de/pubman/item/item_331296

Zusammenfassung

A total ozone depletion of 68±7 Dobson units between 380 and 525K from 10 December 2002 to 10 March 2003 is derived from ozone sonde data by the vortex-average method, taking into account both diabatic descent of the air masses and transport of air into the vortex. When the vortex is divided into three equal-area regions, the results are 85±9DU for the collar region (closest to the edge), 52±5DU for the vortex centre and 68±7DU for the middle region in between centre and collar. Our results compare well with other studies: We find good agreement with ozone loss deduced from SAOZ data, with results inferred from POAM III observations and with results from tracer-tracer correlations using HF as the long-lived tracer. We find a higher ozone loss than that deduced by tracer-tracer correlations using CH4. We have made a careful comparison with Match results: The results were recalculated using a common time period, vortex edge definition and height interval. The two methods generally compare very well, except at the 475K level which exhibits an unexplained discrepancy.